//Called when there is data to load
private void Load()
{
BlockOfAliens blockOfAliens = FindObjectOfType <BlockOfAliens>();
score = PlayerPrefs.GetInt("SI_Score");
lives = PlayerPrefs.GetInt("SI_Lives");
string leftAlienID = PlayerPrefs.GetString("SI_leftMostAlien");
string rightAlienID = PlayerPrefs.GetString("SI_rightMostAlien");
blockOfAliens.SetNextToLoad(PlayerPrefs.GetInt("SI_nextToLoad"));
//Right is true if the saved value is a 1
blockOfAliens.SetDirection(PlayerPrefs.GetInt("SI_right") == 1);
blockOfAliens.SetSpeed(PlayerPrefs.GetFloat("SI_Speed"));
scoreText.text = score.ToString("n0");
//By default the first 3 life images are shown so...
//If the lives is less than or equal to 3 then deactivate the images starting from the right most images so 3-i not i
if (lives <= 3)
{
for (int i = 3 - lives; i > 0; i--)
{
lifeImages[3 - i].gameObject.SetActive(false);
}
}
//Else if the number of lives is less than or equal to the number of images then
//activate the correct number of images starting at the 4th image
else if (lives <= lifeImages.Length)
{
for (int i = 3; i < lives; i++)
{
lifeImages[i].gameObject.SetActive(true);
}
}
//Else life text needs showing so deactivate all the images
else
{
for (int i = 0; i < 3; i++)
{
lifeImages[i].gameObject.SetActive(false);
}
lifeText.gameObject.SetActive(true);
lifeText.text = lives.ToString();
showingLifeText = true;
}
//Read the alien info from a CSV
StreamReader reader = File.OpenText(Application.dataPath + "/StreamingAssets/SpaceInvaders/AlienInfo.csv");
string line = reader.ReadLine();
List <Alien> aliens = blockOfAliens.GetAliens();
//Start at -1 as it gets incremented at the start of the loop
int currentAlien = -1;
Alien alien;
while (line != null)
{
//Get the next alien
currentAlien++;
alien = aliens[currentAlien];
//Split the line on ","
string[] data = line.Split(","[0]);
//Keep searching for the alien that has the info stored in data
while (data[0] != alien.transform.parent.name + alien.name)
{
//As the CSV data is stored in the same order as the aliens arra then
//if this data doesnt correspond to the current alien then we havent saved any info for this alien
//i.e it was shot so remove it
alien.transform.parent.GetComponent <RowOfAliens>().RemoveAlien(alien);
alien.GetColumn().RemoveAlien(alien);
alien.gameObject.SetActive(false);
currentAlien++;
alien = aliens[currentAlien];
}
//We have found the alien so update its position to the data we read
alien.transform.position = new Vector3(float.Parse(data[1]), float.Parse(data[2]), 0);
//If this alien is the left or right most alien then set them appropriately
if (data[0] == leftAlienID)
{
blockOfAliens.SetLeft(alien);
}
if (data[0] == rightAlienID)
{
blockOfAliens.SetRight(alien);
}
line = reader.ReadLine();
}
reader.Close();
//We have now read all of the data from the file so any remaining aliens were shot
//Delete any remaining aliens
for (int i = currentAlien + 1; i < aliens.Count; i++)
{
alien = aliens[i];
alien.transform.parent.GetComponent <RowOfAliens>().RemoveAlien(alien);
alien.GetColumn().RemoveAlien(alien);
alien.gameObject.SetActive(false);
}
//Read the block info from a CSV (this is very similar to loading the aliens)
reader = File.OpenText(Application.dataPath + "/StreamingAssets/SpaceInvaders/BlockInfo.csv");
line = reader.ReadLine();
List <Block> blocks = new List <Block>();
blocks.AddRange(bases[0].GetBlocks());
blocks.AddRange(bases[1].GetBlocks());
blocks.AddRange(bases[2].GetBlocks());
int currentBlock = -1;
Block block;
while (line != null)
{
currentBlock++;
block = blocks[currentBlock];
string[] data = line.Split(","[0]);
while (data[0] != block.transform.parent.name + block.name)
{
//The block wasnt save so is inactive
block.SetInactive();;
currentBlock++;
block = blocks[currentBlock];
}
//We have found the block so set its sprite to the saved value
block.ChangeSprite(int.Parse(data[1]));
line = reader.ReadLine();
}
reader.Close();
//Delete any remaining blocks
for (int i = currentBlock + 1; i < blocks.Count; i++)
{
block = blocks[i];
block.SetInactive();
}
}
//Save the game progress
//Playerprefs cannot save bools so some ints are used to represent bools with 1=true and 0=false
public void Save()
{
BlockOfAliens blockOfAliens = FindObjectOfType <BlockOfAliens>();
//Save the score and lives to playerprefs
PlayerPrefs.SetInt("SI_Score", score);
PlayerPrefs.SetInt("SI_Lives", lives);
//The game has been saved so the next time the game is ran something needs loading
PlayerPrefs.SetInt("SI_Load", 1);
PlayerPrefs.SetFloat("SI_Speed", blockOfAliens.GetSpeed());
//Convert the direction to an int
int dir = 0;
if (blockOfAliens.GetDirection())
{
dir = 1;
}
PlayerPrefs.SetInt("SI_right", dir);
PlayerPrefs.SetInt("SI_nextToLoad", blockOfAliens.GetNextToLoad());
Alien leftMostAlien = blockOfAliens.GetLeft();
Alien rightMostAlien = blockOfAliens.GetRight();
//An alien is uniquely identified by its parents name along with its own
//So save this information for the left/right most aliens
PlayerPrefs.SetString("SI_leftMostAlien", leftMostAlien.transform.parent.name + leftMostAlien.name);
PlayerPrefs.SetString("SI_rightMostAlien", rightMostAlien.transform.parent.name + rightMostAlien.name);
PlayerPrefs.Save();
//Save the aliens info to a CSV
StreamWriter writer = File.CreateText(Application.dataPath + "/StreamingAssets/SpaceInvaders/AlienInfo.csv");
string line = string.Empty;
List <Alien> aliens = blockOfAliens.GetAliens();
for (int i = 0; i < aliens.Count; i++)
{
Alien alien = aliens[i];
//Alien id = its parents name along with its own
//The data that needs saving is alien id and is position
line = alien.transform.parent.name + alien.name + "," + alien.transform.position.x + "," + alien.transform.position.y;
writer.WriteLine(line);
}
writer.Close();
//Save the blocks info to a CSV
writer = File.CreateText(Application.dataPath + "/StreamingAssets/SpaceInvaders/BlockInfo.csv");
line = string.Empty;
//A list of all of the blocks
List <Block> blocks = new List <Block>();
//Add all the blocks from each base to blocks
blocks.AddRange(bases[0].GetBlocks());
blocks.AddRange(bases[1].GetBlocks());
blocks.AddRange(bases[2].GetBlocks());
for (int i = 0; i < blocks.Count; i++)
{
Block block = blocks[i];
//Block id = parents name along with its own
//The data that needs saving is block id and its current state (the sprite it is showing)
line = block.transform.parent.name + block.name + "," + block.GetCurrentSprite().ToString();
writer.WriteLine(line);
}
writer.Close();
}